英语语法分析

Heparan sulfates are long, unbranched, negatively charged polysaccharides that are bound to core proteins.

硫酸乙酰肝素是一种结合在核心蛋白上的带负电荷的长直链多糖。

PurposeTo prepare heparan sulfate (HS) from different sources, and to determine their physicochemical properties.

目的从不同来源制备硫酸乙酰肝素(HS)，并测定其理化性质。

Heparan sulphate is not a protein. It is, rather, a sulphur-rich sugar-like molecule of a sort often involved in glycosylation.

硫酸乙酰肝素并不是一种蛋白质，在某种程度上它只是经常参于糖基化的一种富硫的、类糖的分子。